Dataset: optics
Deployment: TT007

Bio Optical Profiler Data

Principal Investigator:

Dr Charles C. Trees (San Diego State University, SDSU)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

U.S. JGOFS Equatorial Pacific (EqPac)

Version:

September 19, 1994

Deployment Synonyms:

EqPac Spring Survey

Version Date:

1994-09-19

Data URL:

https://www.bco-dmo.org/dataset-deployment/450847/data

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Description

Bio Optical Profiler Data

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              Chuck Trees
   of:              San Diego State University
   dataset:         Bio Optical Profiler Data
   dates:           February 04, 1992 to March 08, 1992
   location:        N: 12.0147  S: -12.0293  W: -140.434  E: -134.9978
   project/cruise:  EQPAC/TT007 - Spring Survey
   ship:            Thomas Thompson
   note:
   Surface irradiance (Es_n) wave lengths are only relative values
   and should not be used as absolute values.  These data are used
   for internal processing of the radiometric data.

   EqPac Protocol 24

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Instruments

Bio-Optical Profiling System

Supplied Description:

Instrument Type

Generic Name: Bio-Optical Profiling System

Acronym: BOPS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/122/

Generic Description:

Bio-Optical Profiling System (BOPS) is an updated version of the BOPS originally developed by Smith et al. (1984) and is used to collect optical data. The heart of the BOPS is a Biospherical instruments MER-1048 Spectroradiometer which measures up and downwelling spectral irradiance and upwelling spectral radiance. The MER-1048 also has sensors for Photosynthetically Available Radiation (PAR), depth, tilt and roll. In addition, temperature and conductivity are measured with a Sea-Bird CTD, chlorophyll fluorescence is measured with a Sea Tech fluorometer and beam transmission with a Sea Tech 25-cm transmissometer. The Mer-1048 acquires all the data 16 times a second, averages it to four records a second and sends it up the cable to a deck box and a Compaq-286 computer which stores the data on the hard disk. Additionally, a deck cell measures the downwelling surface irradiance in four spectral channels. Also surface PAR is measured continuously using a Biospherical Instruments QSR-240 Integrating PAR sensor. The profile data is commonly filtered to remove obvious data spikes and then binned into one-meter averages.

Raymond C. Smith, Charles R. Booth, and Jeffrey L. Star, "Oceanographic biooptical profiling system," Appl. Opt. 23, 2791-2797 (1984).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
event	event/operation number from event log		event
sta	station number fro event log		no_bcodmo_term
cast	optical profile cast number		cast
cast_type	either upcast or downcast		no_bcodmo_term
lat	latitude, negative = south	decimal degrees	lat
lon	longitude, negative = west	decimal degrees	lon
depth	depth_of_observation	meters	depth
Es_n456	spectral irradiance above sea su wave length of 456nm	uW/cm^2nm^-1*10^-3	no_bcodmo_term
Es_n488	spectral irradiance above sea su wave length of 488nm	uW/cm^2nm^-1*10^-3	no_bcodmo_term
Es_n532	spectral irradiance above sea su wave length of 532nm	uW/cm^2nm^-1*10^-3	no_bcodmo_term
Es_n670	spectral irradiance above sea su wave length of 670nm	uW/cm^2nm^-1*10^-3	no_bcodmo_term
Kd_452	diffuse attenuation coefficient for Ed 452	m^-1*10^-4	no_bcodmo_term
Ed_452	downwelled irradiance at wave length of 452	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_440	diffuse attenuation coefficient for Ed 440	m^-1*10^-4	no_bcodmo_term
Ed_440	downwelled irradiance at wave length of 440	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_486	diffuse attenuation coefficient for Ed 486	m^-1*10^-4	no_bcodmo_term
Ed_486	downwelled irradiance at wave length of 486	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_519	diffuse attenuation coefficient for Ed 519	m^-1*10^-4	no_bcodmo_term
Ed_519	downwelled irradiance at wave length of 519	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_530	diffuse attenuation coefficient for Ed 530	m^-1*10^-4	no_bcodmo_term
Ed_530	downwelled irradiance at wave length of 530	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_548	diffuse attenuation coefficient for Ed 548	m^-1*10^-4	no_bcodmo_term
Ed_548	downwelled irradiance at wave length of 548	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_589	diffuse attenuation coefficient for Ed 589	m^-1*10^-4	no_bcodmo_term
Ed_589	downwelled irradiance at wave length of 589	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_632	diffuse attenuation coefficient for Ed 632	m^-1*10^-4	no_bcodmo_term
Ed_632	downwelled irradiance at wave length of 632	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_655	diffuse attenuation coefficient for Ed 655	m^-1*10^-4	no_bcodmo_term
Ed_655	downwelled irradiance at wave length of 655	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_670	diffuse attenuation coefficient for Ed 670	m^-1*10^-4	no_bcodmo_term
Ed_670	downwelled irradiance at wave length of 670	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_696	diffuse attenuation coefficient for Ed 696	m^-1*10^-4	no_bcodmo_term
Ed_696	downwelled irradiance at wave length of 696	uW/cm^2nm^-1*10^-4	no_bcodmo_term
K_par	diffuse attenuation coefficient for E par	m^-1*10^-4	no_bcodmo_term
E_par	underwater photosynthetically available radiation	uE/m^2/sec*10^-4	no_bcodmo_term
Ku_439	diffuse attenuation coefficient for Eu 439	m^-1*10^-4	no_bcodmo_term
Eu_439	upwelled irradiance at wave length of 439	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_453	diffuse attenuation coefficient for Eu 453	m^-1*10^-4	no_bcodmo_term
Eu_453	upwelled irradiance at wave length of 453	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_486	diffuse attenuation coefficient for Eu 486	m^-1*10^-4	no_bcodmo_term
Eu_486	upwelled irradiance at wave length of 486	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_529	diffuse attenuation coefficient for Eu 529	um^-1*10^-4	no_bcodmo_term
Eu_529	upwelled irradiance at wave length of 529	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_549	diffuse attenuation coefficient for Eu 549	m^-1*10^-4	no_bcodmo_term
Eu_549	upwelled irradiance at wave length of 549	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_589	diffuse attenuation coefficient for Eu 589	m^-1*10^-4	no_bcodmo_term
Eu_589	upwelled irradiance at wave length of 589	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_632	diffuse attenuation coefficient for Eu 632	m^-1*10^-4	no_bcodmo_term
Eu_632	upwelled irradiance at wave length of 632	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_670	diffuse attenuation coefficient for	Eu 670	no_bcodmo_term
Eu_670	upwelled irradiance at wave length of 670	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kl_442	diffuse attenuation coefficient for Lu 442	m^-1*10^-4	no_bcodmo_term
Lu_442	upwelled radiance at wave length of 442	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_456	diffuse attenuation coefficient for Lu 456	m^-1*10^-4	no_bcodmo_term
Lu_456	upwelled radiance at wave length of 456	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_489	diffuse attenuation coefficient for Lu 489	m^-1*10^-4	no_bcodmo_term
Lu_489	upwelled radiance at wave length of 489	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_531	diffuse attenuation coefficient for Lu 531	m^-1*10^-4	no_bcodmo_term
Lu_531	upwelled radiance at wave length of 531	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_550	diffuse attenuation coefficient for Lu 550	m^-1*10^-4	no_bcodmo_term
Lu_550	upwelled radiance at wave length of 550	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_590	diffuse attenuation coefficient for Lu 590	m^-1*10^-4	no_bcodmo_term
Lu_590	upwelled radiance at wave length of 590	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_711	diffuse attenuation coefficient for Lu 711	m^-1*10^-4	no_bcodmo_term
Lu_711	upwelled radiance at wave length of 711	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
temp	CTD derived water temperature	millidegrees C	temp
beam	particle beam attenuation coefficient	meters	no_bcodmo_term
fluor	chlorophyll-a fluorescence	millivolts	fluor
year	year as YY		year
mon	month as MM		no_bcodmo_term
day	day as DD		no_bcodmo_term
time	time in local hours and minutes		no_bcodmo_term
comment	sky conditions etc.		no_bcodmo_term
pts_per_meter	number of original points per one meter bin	count	no_bcodmo_term
tilt	instrument tilt	degrees range -45 to 45	no_bcodmo_term
roll	instrument roll	degrees range -45 to 45	no_bcodmo_term
sal	CTD salinity calculated from conductivity	PPT	sal
cond	CTD conductivity		cond
sigma	calculated density		no_bcodmo_term
paruw	downwelling scalar PAR at depth	E17 quanta/sec/cm^2	no_bcodmo_term
ed_410	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_441	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_488	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_520	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_550	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_560	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_633	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_656	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_671	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_683	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_694	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_710	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_410	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_441	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_488	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_520	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_550	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_671	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_694	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
lu_410	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_441	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_488	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_520	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_633	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_656	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_683	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
e_410	spectral irradiance above sea surface	uW/cm^2/nm	no_bcodmo_term
e_520	spectral irradiance above sea surface	uW/cm^2/nm	no_bcodmo_term
e_589	spectral irradiance above sea surface	uW/cm^2/nm	no_bcodmo_term
e_683	spectral irradiance above sea surface	uW/cm^2/nm	no_bcodmo_term
Kd_518	diffuse attenuation coefficient for Ed_519	m^-1*10^-4	no_bcodmo_term
Ed_518	downwelled irradiance at wave length of 519	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_669	diffuse attenuation coefficient for Ed_670	m^-1*10^-4	no_bcodmo_term
Ed_669	downwelled irradiance at wave length of 670	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kl_455	diffuse attenuation coefficient for Lu_456	m^-1*10^-4	no_bcodmo_term
Lu_455	upwelled radiance at wave length of 456	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_591	diffuse attenuation coefficient for Lu_590	m^-1*10^-4	no_bcodmo_term
Lu_591	upwelled radiance at wave length of 590	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_685	diffuse attenuation coefficient for Lu_685	m^-1*10^-4	no_bcodmo_term
Lu_685	upwelled radiance at wave length of 685	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term

Database

Contribute Data

Dataset: optics
Deployment: TT007

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: opticsDeployment: TT007

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: optics
Deployment: TT007